A sound note of frequency 250 Hz and wavelength 1.3m is produced at a point near a hill. If the echo of the sound is received 1 second later at the point, how far away is the hill from the point?

By: |Published on: Aug 29|Categories: Physics WAEC| 0 comments

A. 131.3m
B. 162.5m
C. 248.7m
D. 251.3m
E. 325.0m.

Correct Answer:

Option B – 162.5m

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